In this paper the architecture and subsystems of the h-Life platform are described. The system is currently under implementation and therefore all system components and modules are described according to their design specifications. h-Life aims at developing a user-friendly, personalized and ubiquitously accessible knowledge-based system that will provide citizens with an intelligent tool for monitoring the state of health and lifestyle. The h-Life system is based on the integration of several components: • a knowledge repository related to health, nutrition, fitness and lifestyle• a user repository where personal health records and user profiles are stored• a plan repository for the storage of medical plans• an intelligent adviser and plan selection mechanism, which provides advice and plans based on the user profile• an alerting and reminding module that issues alerts (to ensure the timely execution of a selected plan) and notifications concerning events of potential interest• a customer-facing module, which ensures personalized interaction with the system and customizes the user-system interaction according to the user profile.Based on the latest technology in intelligent and communication systems, the h-Life environment aims at providing the user with personalized, ‘certified’ lifestyle information and consultancy, tailored to individual needs and available anywhere and at anytime.
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